So shes able to divert attention from other, potentially more useful characters you may have already sent on Quests, for example
This Orzhov card is a very powerful engine in an aristocrats deck, rebuying all of your dead creatures so that you can use them again for more sacrificial shenanigans
While any and all Zombie payoffs are great with him, he gets especially good alongside recursive Zombies, as well as other Zombies that generate value when your Zombies die
Every other Floodborn has a target thats as good or better than Morph, but if nothing else, he provides an additional target that can help you shift out high-priority characters more reliably
Its a great spell to play in burn decks that put a lot of pressure on your opponents, because theyll likely be too worried about losing life and will let you draw the cards